org.dashbuilder.dataset.engine.function

Class CountFunction

java.lang.Object

org.dashbuilder.dataset.engine.function.AbstractFunction

org.dashbuilder.dataset.engine.function.CountFunction

All Implemented Interfaces:

AggregateFunction

public class CountFunction
extends AbstractFunction

It calculates the number of occurrences inside a given collection.

Field Summary

Fields inherited from class org.dashbuilder.dataset.engine.function.AbstractFunction

precission

Constructor Summary

Constructors

Constructor and Description
CountFunction()

Method Summary

Modifier and Type	Method and Description
Object	aggregate(List values)
Object	aggregate(List values, List<Integer> rows)
AggregateFunctionType	getType()

Methods inherited from class org.dashbuilder.dataset.engine.function.AbstractFunction

round

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CountFunction

public CountFunction()

Method Detail

getType

public AggregateFunctionType getType()

aggregate

public Object aggregate(List values)

aggregate

public Object aggregate(List values,
                        List<Integer> rows)